| Nagasumi's in hot water after a beautiful, young mermaid named Sun saves him from drowning. The deep-sea sweetheart's dad is a merman yakuza prone to executing anyone who learns his family's scaly secret! Luckily, there's a catch - if Nagasumi agrees to marry Sun, he just might avoid sleeping with the fishes! |
| Name | Character | Episodes |
|---|---|---|
| Takehito Koyasu | シャーク藤代 / Shark Fujishiro (voice) | 26 |
| Tessyo Genda | ルナパパ / Lunar's Papa (voice) | 26 |
| Daisuke Ono | 三河 海 / Kai Mikawa (voice) | 26 |
| Kenta Miyake | 瀬戸 豪三郎 / Gozaburo Seto (voice) | 26 |
| Tomoko Kaneda | 猿飛 悟 / Satori Sarutobi (voice) | 26 |